Machinists Often Use a Coordinate System to Drill Holes by Placing

question 110

Multiple Choice

Machinists often use a coordinate system to drill holes by placing the origin at the most convenient location. A bolt circle is the circle formed by completing an arc through the centers of the bolt holes in a piece of metal. Find the coordinates of the centers of points A, D, and G for the equally spaced $\frac { 1 } { 3 }$ -in. holes on a bolt circle of radius 7.00 in., as shown in the illustration. Round your answer to the nearest tenth.

• A) A = (-4.9, 0.0) D = (7.0, 4.9) G = (0.0, -7.0)
• B) A = (7.0, 0.0) D = (-4.9, -7.0) G = (0.0, 0.0)
• C) A = (7.0, 0.0) D = (-4.9, 4.9) G = (0.0, -7.0)
• D) A = (7.0, -7.0) D = (-4.9, 4.9) G = (0.0, 0.0)

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Definitions:

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The process of making an action or process easier or more achievable by providing assistance or support.

Outcomes

The results or consequences of actions, processes, or behaviors, often measured to determine success or impact.

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Actions or practices aimed at preserving or improving the condition and functionality of something.

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